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websocket_controller.go
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/
websocket_controller.go
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package controller
import (
"encoding/json"
"net/http"
model "github.com/coretrix/hitrix/example/model/socket"
"github.com/coretrix/hitrix/service"
"github.com/coretrix/hitrix/service/component/socket"
"github.com/gin-gonic/gin"
"github.com/gorilla/websocket"
)
var upgrader = websocket.Upgrader{
ReadBufferSize: 1024,
WriteBufferSize: 1024,
EnableCompression: true,
CheckOrigin: func(r *http.Request) bool {
return true
},
}
type DTOMessage struct {
Type string
SocketID string
Data interface{}
}
//if u want to test with websocket-demo.html u should add it to CORS policy
type WebsocketController struct {
}
func (controller *WebsocketController) InitConnection(c *gin.Context) {
ws, err := upgrader.Upgrade(c.Writer, c.Request, nil)
if err != nil {
panic(err)
}
socketRegistryService, has := service.DI().SocketRegistry()
if !has {
panic("Socket Registry is not registered")
}
errorLoggerService, has := service.DI().ErrorLogger()
if !has {
panic("Socket Registry is not registered")
}
connection := &socket.Connection{Send: make(chan []byte, 256), Ws: ws}
socketHolder := &socket.Socket{
ErrorLogger: errorLoggerService,
Connection: connection,
ID: "unique connection hash based on userID, deviceID and timestamp",
Namespace: model.DefaultWebsocketNamespace,
}
socketRegistryService.Register <- socketHolder
go socketHolder.WritePump()
go socketHolder.ReadPump(socketRegistryService, func(rawData []byte) {
dto := &DTOMessage{}
err = json.Unmarshal(rawData, dto)
if err != nil {
errorLoggerService.LogError(err)
return
}
//return back the received message
s, _ := socketRegistryService.Sockets.Load(socketHolder.ID)
s.(*socket.Socket).Emit(dto)
})
}